Igniter.



, H. N. FULLENWBIDER.

IGNITER.

APPLIUATIQK FILED APR. 18, 1910.

983,489.. Patented Feb.'7,1911.

n; .vanms rsrzns co, WASHINGTON n c HENRY N. FULLENWEIDER, OF WAVELAND, INDIANA.

IGNITER.

Specification of Letters Patent.

Patented Feb. '7, 1911.

Application filed April 18, F110. Serial No. 556,013.

To all whom it may concern:

Be it known that I, HENRY N. FULLEN- wninnn, a citizen of the United States, residing at avela-nd, in the county of Montgoniery State of Indiana, have invented certain new and useful Improvements in Igniters; and I do hereby declare the following to be a full, clear and exact description oi the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to igniters, espo cially designed for use on automobiles.

The principal object of this invention is to provide a clamp for a gas burner, the clamp having novel 'uards for preventing the electrode conductor wires from accidental engagement with the burner stem.

To attain the above ends, the invention consists of the novel details oi construction and combination oi parts hereinafter fully described and claimed.

l n the accompzuying drawings, forming part of this necilicatioin Figure 1 is a lon gitudinal sectional view of my improved igniter. Fig. 2 is a plan view of the igniter.

Like characters t reference designate similar parts in the views shown,

The burner stem is designated by the numeral H, and is of the iaial kind. Arran' ed upon the burner stem is av split clamping collar 15 the terminals of which are oil'set and directed to form substantially parallel cars 16 through which a bolt 1? is assed to draw the ears together and tightly clamp the collar upon the burner stem. These ears permit of the collar being adjusted to any desired position. upon the burner stein as will. readily be understood. Fixed to one side of the collar 15 is a metal sleeve 18 which is considerably less in cross diameter than the collar and is substantially the same in length as the collar. This sleeve is brazed, soldered or otherwise rigidly secured to the collar. Disposed in the bore of the sleeve 18 is a tubular insulating element 19 formed of vulcanite, isinglass, glass or other suitable material. This tube snugly fits in the bore of the sleeve and is substanti ally the same in length as the length of the sleeve.

Arranged upon. opposite ends of the sleeve are a pair of angular guard elements 20. Each of these guard elements is preferably L shaped in cross section and is formed with one of its legs 21 circular in outline, tiis circular leg being suilicient in diameter to extend to the outer walls of the sleeve. The mating leg 22 is disposed in alinement with the side of the collar 15 and engages the side of the burner stem lat, being preferably formed arcuate in transverse cross section so as to conform to the curvature of the burner stem. The guard elements are formed of insulating material such as vulcanite, fiber or the like. The function of these guards is to prevent primarily the grounding oi"- the conductor wires upon the burner stem as will hereinafter appear.

Disposed in the bore of the tubular insulating element 19 is a rod-like electrode 23 which projects through suitable openings formed in the circular legs 21 or the angular insulating elements. One extr niity ot the electrode is bent as shown at 2% to overhang the gas outlet of the burner stem 14land the opposite extremity is provided with screw threads 25. Integral with the electrode is a hemispherical lug 26 the flat bot tom face of which bears against the top face of the circular leg of one of the angular insulating elements. A nut 27 is threaded on the threaded extremity of the electrode and is screwed up tightly against the bottom face of the circular log oi the other angular insulating element. llhe lug 26 and nut 27 constitute locking means which rigidly hold the electrode in position in the bore of the tubular insulating element. It will be seen by referring to the drawings that both the lug and nut are disposed within the borders of the arcuate legs, or in other words, the legs of the angular insulating guard element which are in abutting contact with the sides of the burner stem. This construction prevents sparks jumping from the nut and lug to the burner stem and short-circuiting the igniter.

Disposed upon the threaded extremity of the electrode 23 is a jam nut 28 between which and the re aining nut 27 the terminal one of the wires of an electric circuit may be tightly clamped. The terminal oi the mating wire of the circuit may be hooked over the shank of the bolt 17 between the collar ear and the nut 29 01" this bolt.

From the above it is clear that when the terminal of the conductor wire is secured to the electrode between the retaining and 3' am nuts that should a strand of the conductor wire become partially disengaged from between the nut; it will be prevented from contact with the burner stem l) Virtue Oflf the ieg ot' the guard element and therefore grounding of the current upon the burner Hit}!!! entirely obviated.

Disposed upon the side of the clamping collar 15 an electrode 31 having its extremity henti to overhang the gas outlet of tl burner stem as shown at 3; the extreme end of this electrode being spaced from the extreme end of the electrode Zlal ove de- :ufl'lllfll w an air gap 3 :3. This electrode 31 is brazed or otherwise rigidly secured to the oll ma ntained between the. collar and electrode.

rom the 'tj'oregoing description taken in connection wit 1 the accompairving drawings, it thought I re construction and operation of my invention will be easily understood without a more extended explanation, it being understood that Yarious changes may he made in the form, proportion and minor details of construction within the scope of the appended claims.

d liat' ix claimed i :2

1. It clamp for gas burners. comprising a clamping collar. an insulated electrode on ar so that a good eleetri 'al connection is t one side. of said collar having a conductor wire ei'igaging portion. and an angular in hulat'ing guard element adapted to extend along one side ot the hurner and l'orm a barrier between said conductor wire engaging portion and said burner. where rr to prevent grounding of said eoiulnetor wire upon said burner.

A clamp for gas burners, comprising a clamping collar, an insulated electrode on one side of said collar. hating a conductor wire engaging portion. and a pair of angle lar insulating elements adapted to extend ieyond the edges of said collar. means carried upon said electrode for clamping said guard elements in position one o'li said elements forming a barrier between the wire. engaging portion ot said electrode and adjacent side of a burner and presenting a stop to prevent contact of a conductor wire upon the burner.

In testimony whereof. i atlix my signature, in presence of two witne;

il itneasesz CLYnn H. JOXI-Ls, Jxxn A. Manoxm'. 

